import time, random
from machine import Pin, PWM, SoftI2C, ADC
from pico_i2c_lcd import I2cLcd

i2c = SoftI2C(sda=Pin(26), scl=Pin(27), freq=40000)
lcd_address = i2c.scan()[0]
lcd = I2cLcd(i2c, lcd_address, 2, 16)

servo = PWM(Pin(16))
servo.freq(50)

for i in range (10, -1, -1):
    lcd.clear()
    lcd.move_to(0,0)
    lcd.putstr("Countdown: {}".format(i))
    time.sleep(1)
servo.duty_u16(4000)